// Encoded SVG Background
@mixin encoded-svg-background($svg) {
  @warn "$svg =>>>>>>>>>#{$svg}";
  // $url: `encodeURIComponent(#{$svg}) `;
  // background-image: url("data:image/svg+xml;charset=utf-8,${url}");
}


// 渐变背景
@mixin background($start: #ffffff, $end: #000000) {
  background: $end;
  background-image: -webkit-gradient(linear, left top, left bottom, from($start), to($end)); /* Saf4+, Chrome */
  background-image: linear-gradient($start, $end);
}